An earthquake felt Sunday morning in Cuba and parts of the Florida Keys was actually an aftershock from a 5.0-magnitude earthquake that rattled the region two months ago, according to the National Earthquake Information Center.

The 4.7-magnitude earthquake that struck about 17 miles north of Corralillo, Cuba at 7:26 a.m. Sunday, was the fourth aftershock from the Jan. 9 event.

“It is not unusual to have aftershocks,” said Jana Pursley, a geophysicist with National Earthquake Information Center. “When they are this closely located and appear to be at the same depth they are considered aftershocks.”

The other three aftershocks were not as strong on the Richter scale and only one on Feb. 4 produced reports in Cuba of light shaking, Pursley said.

Sunday morning’s aftershock, which was not strong enough to cause damage, was felt in Corralillo, Cuba and the lower to middle Keys.

“There was a handful of phone calls,” said Monroe County Sheriff’s Department spokeswoman Becky Herrin. “It was a really small earthquake.”